/* Jack Borkowski — wersja 2, paleta niebieska.
   Bez zewnętrznych czcionek, bez zewnętrznych zasobów, bez żądań sieciowych. */

:root{
  --navy-900:#071a2c;
  --navy-850:#0a2138;
  --navy-800:#0d2b45;
  --navy-700:#143b5c;
  --blue-600:#15679f;
  --blue-500:#2585c6;
  --blue-100:#d6e7f4;
  --blue-50:#eaf3fa;
  --paper:#f5f9fc;
  --surface:#ffffff;
  --ink:#0a1622;
  --body:#3c4a57;
  --muted:#5a6773;
  --line:#d7e3ed;
  --focus:#f0a53a;
  --radius:12px;
  --maxw:1180px;
  --pad:clamp(1.125rem,4vw,2.25rem);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--paper);
  color:var(--body);
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:clamp(1rem,.96rem + .2vw,1.0625rem);
  line-height:1.65;
  text-rendering:optimizeLegibility;
}

img,svg{max-width:100%;height:auto;display:block}

h1,h2,h3{color:var(--ink);line-height:1.15;letter-spacing:-.02em;margin:0 0 .55em;font-weight:660;text-wrap:balance}
h1{font-size:clamp(2.1rem,1.3rem + 3.2vw,3.5rem);letter-spacing:-.03em}
h2{font-size:clamp(1.6rem,1.2rem + 1.6vw,2.4rem)}
h3{font-size:1.0625rem;letter-spacing:-.005em}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}

a{color:var(--blue-600);text-underline-offset:3px}
a:hover{color:var(--navy-700)}

:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.skip-link{
  position:absolute;left:.75rem;top:-4rem;z-index:100;
  background:var(--blue-600);color:#fff;padding:.7rem 1rem;border-radius:var(--radius);
  text-decoration:none;font-weight:600;transition:top .15s ease;
}
.skip-link:focus{top:.75rem;color:#fff}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.container.narrow > *{max-width:46rem}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,26,44,.95);
  border-bottom:1px solid rgba(255,255,255,.1);
  backdrop-filter:saturate(140%) blur(8px);
}
.header-inner{display:flex;align-items:center;gap:1rem 1.75rem;flex-wrap:wrap;padding-block:.85rem}
.brand{font-weight:700;font-size:1.0625rem;color:#fff;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.brand:hover{color:var(--blue-100)}
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem 1.25rem;list-style:none;margin:0;padding:0}
.nav-list a{color:#b9cddd;text-decoration:none;font-size:.875rem;font-weight:520;white-space:nowrap;padding:.2rem 0;border-bottom:2px solid transparent}
.nav-list a:hover{color:#fff}
.nav-list a[aria-current="true"]{color:#fff;border-bottom-color:var(--blue-500)}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font:inherit;font-weight:620;line-height:1.25;
  text-decoration:none;text-align:center;padding:.85rem 1.35rem;
  border-radius:var(--radius);border:1px solid transparent;
  transition:background-color .15s ease,border-color .15s ease;
}
.btn-primary{background:var(--blue-600);color:#fff}
.btn-primary:hover{background:var(--navy-700);color:#fff}
.btn-lg{padding:1.05rem 1.75rem;font-size:1.0625rem}
.btn-header{font-size:.875rem;padding:.6rem 1.05rem;background:#fff;color:var(--navy-900)}
.btn-header:hover{background:var(--blue-100);color:var(--navy-900)}
.cta-row{margin:1.7rem 0 .75rem}

/* ---------- sections ---------- */
.section{padding-block:clamp(3.25rem,7vw,6rem)}
.section-alt{background:var(--blue-50)}
.kicker{
  text-transform:uppercase;letter-spacing:.15em;font-size:.72rem;font-weight:680;
  color:var(--blue-600);margin-bottom:.9rem;
}
.kicker.light{color:#5aa9e0}
.section-lede{font-size:clamp(1.0625rem,1rem + .35vw,1.2rem);color:var(--body);max-width:44rem;margin-bottom:2.4rem}
.section-lede.light{color:#c3d6e6}
.big{font-size:clamp(1.125rem,1rem + .55vw,1.35rem);color:var(--ink);font-weight:500;line-height:1.5}
section[id]{scroll-margin-top:7.5rem}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(90rem 40rem at 78% 8%, rgba(37,133,198,.28), transparent 60%),
    linear-gradient(170deg, var(--navy-900) 0%, var(--navy-850) 55%, var(--navy-800) 100%);
  color:#c9dbe9;
  padding-block:clamp(3rem,6vw,5.5rem);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero-grid{display:grid;gap:2.5rem;grid-template-columns:minmax(0,1fr);align-items:center}
@media (min-width:60em){
  .hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:3.5rem}
}
.hero h1{color:#fff}
.hero .eyebrow{
  text-transform:uppercase;letter-spacing:.15em;font-size:.72rem;font-weight:680;
  color:#6cb4e6;margin-bottom:1.1rem;   /* jasniejszy niz blue-500 — kontrast na gradiencie hero */
}
.hero .lede{font-size:clamp(1.15rem,1rem + .65vw,1.45rem);color:#dce9f3;font-weight:500;max-width:34rem;margin-bottom:1.1rem}
.hero-body{max-width:34rem;color:#a9c1d4}
.cta-note{font-size:.9rem;color:#a6bccd}
.hero-figure{margin:0;position:relative}
.hero-figure img{
  width:100%;border-radius:16px;
  box-shadow:0 30px 60px -25px rgba(0,0,0,.75);
  border:1px solid rgba(255,255,255,.1);
}

/* ---------- narrative ---------- */
.section-narrative{background:var(--surface);border-bottom:1px solid var(--line)}
.section-narrative h2{max-width:22ch}

/* ---------- cards ---------- */
.card-grid{list-style:none;margin:0;padding:0;display:grid;gap:1.1rem;grid-template-columns:repeat(auto-fit,minmax(16.5rem,1fr))}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.5rem 1.4rem;border-top:3px solid var(--blue-500);
}
.card h3{color:var(--navy-700)}
.card p{font-size:.96rem}

/* ---------- pillars ---------- */
.pillars{list-style:none;margin:0 0 2.25rem;padding:0;display:grid;gap:1.75rem;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr))}
.pillar-icon{
  display:flex;align-items:center;justify-content:center;
  width:3rem;height:3rem;border-radius:12px;margin-bottom:.9rem;
  background:var(--blue-100);color:var(--navy-700);
}
.pillar-icon svg{width:1.6rem;height:1.6rem}
.pillar p{font-size:.96rem}

.boundary{
  border-left:3px solid var(--blue-500);padding:.15rem 0 .15rem 1.15rem;
  color:var(--muted);font-size:.94rem;max-width:44rem;
}

/* ---------- process (dark) ---------- */
.section-process{
  background:linear-gradient(165deg,var(--navy-900),var(--navy-800));
  color:#b7cddd;
}
.section-process h2{color:#fff}
.section-process h3{color:#fff}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:1.4rem}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:1rem 1.25rem;align-items:start;
  border-top:1px solid rgba(255,255,255,.14);padding-top:1.4rem;
}
.step:first-child{border-top:0;padding-top:0}
.step-num{
  font-size:clamp(1.3rem,1rem + 1.1vw,1.9rem);font-weight:700;color:var(--blue-500);
  font-variant-numeric:tabular-nums;line-height:1.1;min-width:2.4ch;
}
.step-body p{font-size:.96rem;max-width:46rem;color:#a7c0d3}

/* ---------- about ---------- */
.about-grid{display:grid;gap:2rem 3rem;grid-template-columns:minmax(0,1fr);align-items:start}
@media (min-width:54em){.about-grid{grid-template-columns:minmax(14rem,20rem) minmax(0,1fr)}}
.portrait{margin:0}
.portrait img{width:100%;border-radius:14px;border:1px solid var(--line);box-shadow:0 20px 45px -28px rgba(7,26,44,.6)}
.review-note{
  margin-top:1.6rem;border:1px dashed #b08968;background:#fdf8f2;border-radius:var(--radius);
  padding:1rem 1.15rem;font-size:.9rem;color:#5b4635;
}
.review-note strong{color:#7a4a1c;display:block;margin-bottom:.35rem}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.15rem 2.25rem 1.15rem 0;font-weight:620;color:var(--ink);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.25rem;top:50%;transform:translateY(-50%);font-size:1.4rem;font-weight:500;color:var(--blue-600);line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq summary:hover{color:var(--blue-600)}
.faq-body{padding:0 2.25rem 1.25rem 0;font-size:.96rem}

/* ---------- book ---------- */
.section-book{background:linear-gradient(160deg,var(--navy-800),var(--navy-900));color:#b7cddd}
.section-book h2{color:#fff}
.status-box{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-left:4px solid var(--blue-500);border-radius:var(--radius);padding:1.4rem 1.5rem;
}
.status-title{font-weight:660;color:#fff;margin-bottom:.4rem}
.status-box p:last-child{font-size:.96rem;color:#b7cddd}

/* ---------- footer ---------- */
.site-footer{background:#050f1b;color:#93a9ba;padding-block:2.75rem}
.footer-inner{display:grid;gap:1rem}
.footer-brand{color:#fff;font-weight:660;margin:0;letter-spacing:-.02em}
.footer-nav .nav-list{gap:.35rem 1.25rem}
.footer-nav a{color:#93a9ba}
.footer-nav a:hover{color:#fff}
.footer-note{margin:0;font-size:.82rem;color:#6d8194}

@media (max-width:47.99em){
  .btn-header{order:3;width:100%}
  .site-nav{flex-basis:100%;order:4}
  .nav-list a{font-size:.8125rem}
}